Uniseal

Predrill Hole Size for Uniseals

• http://www.tank-depot.com/shopping/uniseal-instructions.aspx
• http://www.tank-depot.com/shopping/uniseal-instructions.aspx
• 1" - 1.75"
• 1/2" & 3/4" - 1.25"
• 3/8" - 1" predrill; fits 0.675 OD pipe
• 2" - 3" predrill.

Sourcing

• 3/4" and other - [1]
• 4" - [2]